Concept

Aorta

Related publications (95)

Time course of flow-induced adaptation of carotid artery biomechanical properties, structure and zero-stress state in the arteriovenous shunt

Numerous studies have provided evidence of diameter adaptation secondary to flow-overload. but with ambiguous findings vis a vis other morphological parameters and information on the biomechanical aspects of arterial adaptation is rather incomplete. We exa ...

2012

On the Estimation of Total Arterial Compliance from Aortic Pulse Wave Velocity

Nikolaos Stergiopoulos, Orestis Vardoulis

Total arterial compliance (C (T)) is a main determinant of cardiac afterload, left ventricular function and arterio-ventricular coupling. C (T) is physiologically more relevant than regional aortic stiffness. However, direct, in vivo, non-invasive, measure ...

Springer US2012

Isogeometric Analysis of PDEs and numerical implementation in the Finite Element Library LifeV

Nicolò Pagan

The aim of the project is double: to understand the flexibility of the Isogeometric Analysis tools through the solution of some PDEs problems; to test the improvement in the computational time given by a partial loops vectorization at compile-time of the L ...

2012

Wall properties of the apolipoprotein E-deficient mouse aorta

Nikolaos Stergiopoulos, Aristotelis Agianniotis

Objectives: We quantified the dysfunction of the aortic wall, determined structural and elastic properties, and provided histological data of the thoracic aortas of apolipoprotein E (apoE)-deficient mice which are used as model of atherosclerosis. Methods: ...

Elsevier Ireland Ltd2012

Connecting Ventricular Assist Devices to the Aorta: a Numerical Model

Alfio Quarteroni, Simone Deparis, Jean Bonnemain

Mechanical circulatory support, in particular ventricular assist devices (VAD), has been recently proposed as an alternative to transplantation in the treatment of terminal heart failure in the context of the lack of donors and raising number of patients o ...

Springer2012

Impact of Aortic Grafts on Arterial Pressure: A Computational Fluid Dynamics Study

Nikolaos Stergiopoulos, Philippe Reymond, Orestis Vardoulis, Bryn Andrew Martin, Eline Coppens

Objective: Vascular prostheses currently used in vascular surgery do not have the same mechanical properties as human arteries. This computational study analyses the mechanisms by which grafts, placed in the ascending aorta (proximal) and descending aorta ...

Elsevier2011

Validation of a patient-specific one-dimensional model of the systemic arterial tree

Nikolaos Stergiopoulos, Philippe Reymond, Yvette Bohraus, François Lazeyras

Reymond P, Bohraus Y, Perren F, Lazeyras F, Stergiopulos N. Validation of a patient-specific one-dimensional model of the systemic arterial tree. Am J Physiol Heart Circ Physiol 301: H1173-H1182, 2011. First published May 27, 2011; doi:10.1152/ajpheart.008 ...

2011

A constituent-based model of age-related changes in conduit arteries

Nikolaos Stergiopoulos, Alkiviadis Tsamis, Alexander Rachev

Tsamis A, Rachev A, Stergiopulos N. A constituent-based model of age-related changes in conduit arteries. Am J Physiol Heart Circ Physiol 301: H1286-H1301, 2011. First published July 1, 2011; doi: 10.1152/ajpheart.00570.2010.-In the present report, a const ...

2011

Numerical validation of a new method to assess aortic pulse wave velocity from a single recording of a brachial artery waveform with an occluding cuff

Nikolaos Stergiopoulos, Philippe Reymond, Bram Trachet, Patrick Segers

Recently a new method has been proposed as a tool to measure arterial pulse wave velocity (PWV), a measure of the stiffness of the large arteries and an emerging parameter used as indicator of clinical cardiovascular risk. The method is based on measuremen ...

Springer Verlag2010

Arterial remodeling using a constituent-based approach

Alkiviadis Tsamis

This thesis is intended to contribute to the field of biomechanics of growth and remodeling of arteries. The work focuses particularly on growth and remodeling caused by sustained hypertension, increased blood flow, and ageing. A structure-based constituti ...

EPFL2010

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